#include <stdio.h>
#include <stdlib.h>

int main() {
    int a[10] = {};
    int len = sizeof(a) / sizeof(int);
    printf("%d \n", len);
    for (int i = 0; i < 10; i++) {
        printf("%d ", a[i]);
    }
    printf("\n");

    int* arr = (int*)malloc(4 * 20);
    printf("%d\n", sizeof(arr));

    return 0;
}
